11331641 has 2 divisors, whose sum is σ = 11331642. Its totient is φ = 11331640.

The previous prime is 11331611. The next prime is 11331659. The reversal of 11331641 is 14613311.

11331641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7311616 + 4020025 = 2704^2 + 2005^2 .

It is a cyclic number.

It is not a de Polignac number, because 11331641 - 2⁶ = 11331577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11331611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665820 + 5665821.

It is an arithmetic number, because the mean of its divisors is an integer number (5665821).

Almost surely, 2^11331641 is an apocalyptic number.

It is an amenable number.

11331641 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331641 is an equidigital number, since it uses as much as digits as its factorization.

11331641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216, while the sum is 20.

The square root of 11331641 is about 3366.2502877831. The cubic root of 11331641 is about 224.6109556802.

Adding to 11331641 its reverse (14613311), we get a palindrome (25944952).

The spelling of 11331641 in words is "eleven million, three hundred thirty-one thousand, six hundred forty-one".